Oberton 18XB1600

• Sensitivity (1W, 1m, infinite baffle) SPL1W 95.1dB
• Frequency response 35 - 1000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 32.5Hz
• Mechanical quality factor QMS 8.74
• Electrical quality factor QES 0.29
• Total quality factor QTS 0.28

Large signal parameters

• Maximum linear excursion xmax 12.5mm
• Air volume displaced at xmax VD 1448cm³
• Power handling P 1600W
• Program power Pmax 3200W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.3Ω
• Inductance (1kHz) LE 1.46mH
• VC Diameter 115mm
• Winding height HVC 32mm
• Winding material Copper
• Former material Glass fiber

Magnet

• Flux density B 1.1T
• Force factor Bl 29.6N/A
• Motor constant Bl/√RE 12.9N/√W
• Air gap height HAG 14mm
• Material Ferrite

Diaphragm

• Effective diameter 384mm
• Effective area SD 1158cm²
• Moving mass MMS 231g
• Moving mass (without air load) MMD 203g
• Material Paper with Kevlar and glass fibers

Suspensions

• Stiffness KMS 9.62N/mm
• Compliance CMS 104µm/N
• Equivalent volume to the compliance VAS 267L
• Mechanical resistance RMS 5.4N·s/m

Dimensions

• Nominal diameter 18″
• 461mm
• Overall diameter 461mm
• Baffle cutout diameter 417mm
• Overall depth 209mm
• Volume occupied by the driver (estimated) 8.4L
• Net weight 16.8kg
• Frame material Die cast aluminium